Faucet knob



FIG. 1 is a perspective view of a faucet knob showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a first side view thereof, the opposite side being a mirror image of the side shown; and,

FIG. 5 is a front view thereof. 

The ornamental design for a faucet knob, as shown and described. 